activity
20132024
most citedFeature Selection: A Data Perspective

2.4k citations · 2.7k across the 42 of their papers we have counts for

collaborators
Showing cs.SIShow all

15 papers · 1 filter

cs.SI2024★ 1 cited

The Pulse of Mood Online: Unveiling Emotional Reactions in a Dynamic Social Media Landscape

Siyi Guo, Zihao He, Ashwin Rao +3

The rich and dynamic information environment of social media provides researchers, policy makers, and entrepreneurs with opportunities to learn about social phenomena in a timely m…

cs.SI2023★ 2 cited

Pandemic Culture Wars: Partisan Differences in the Moral Language of COVID-19 Discussions

Ashwin Rao, Siyi Guo, Sze-Yuh Nina Wang +2

Effective response to pandemics requires coordinated adoption of mitigation measures, like masking and quarantines, to curb a virus's spread. However, as the COVID-19 pandemic demo…

cs.SI2023

Gender and Prestige Bias in Coronavirus News Reporting

Rebecca Dorn, Yiwen Ma, Fred Morstatter +1

Journalists play a vital role in surfacing issues of societal importance, but their choices of what to highlight and who to interview are influenced by societal biases. In this wor…

cs.SI2023★ 8 cited

Just Another Day on Twitter: A Complete 24 Hours of Twitter Data

Juergen Pfeffer, Daniel Matter, Kokil Jaidka +13

At the end of October 2022, Elon Musk concluded his acquisition of Twitter. In the weeks and months before that, several questions were publicly discussed that were not only of int…

cs.SI2022

Retweets Amplify the Echo Chamber Effect

Ashwin Rao, Fred Morstatter, Kristina Lerman

The growing prominence of social media in public discourse has led to a greater scrutiny of the quality of online information and the role it plays in amplifying political polariza…

cs.SI2022

Partisan Asymmetries in Exposure to Misinformation

Ashwin Rao, Fred Morstatter, Kristina Lerman

Health misinformation is believed to have contributed to vaccine hesitancy during the Covid-19 pandemic, highlighting concerns about the role of social media in polarization and so…

cs.SI2021★ 3 cited

Mapping Moral Valence of Tweets Following the Killing of George Floyd

J. Hunter Priniski, Negar Mokhberian, Bahareh Harandizadeh +4

The viral video documenting the killing of George Floyd by Minneapolis police officer Derek Chauvin inspired nation-wide protests that brought national attention to widespread raci…

cs.SI2020★ 15 cited

Political Partisanship and Anti-Science Attitudes in Online Discussions about Covid-19

Ashwin Rao, Fred Morstatter, Minda Hu +4

The novel coronavirus pandemic continues to ravage communities across the US. Opinion surveys identified importance of political ideology in shaping perceptions of the pandemic and…

cs.SI2020

Aggressive, Repetitive, Intentional, Visible, and Imbalanced: Refining Representations for Cyberbullying Classification

Caleb Ziems, Ymir Vigfusson, Fred Morstatter

Cyberbullying is a pervasive problem in online communities. To identify cyberbullying cases in large-scale social networks, content moderators depend on machine learning classifier…

cs.SI2019★ 7 cited

Debiasing Community Detection: The Importance of Lowly-Connected Nodes

Ninareh Mehrabi, Fred Morstatter, Nanyun Peng +1

Community detection is an important task in social network analysis, allowing us to identify and understand the communities within the social structures. However, many community de…

cs.SI2019★ 1 cited

Identifying and Analyzing Cryptocurrency Manipulations in Social Media

Mehrnoosh Mirtaheri, Sami Abu-El-Haija, Fred Morstatter +2

Interest surrounding cryptocurrencies, digital or virtual currencies that are used as a medium for financial transactions, has grown tremendously in recent years. The anonymity sur…

cs.SI2018★ 19 cited

Mining and Forecasting Career Trajectories of Music Artists

Shushan Arakelyan, Fred Morstatter, Margaret Martin +2

Many musicians, from up-and-comers to established artists, rely heavily on performing live to promote and disseminate their music. To advertise live shows, artists often use concer…

cs.SI2015★ 8 cited

Predicting Online Protest Participation of Social Media Users

Suhas Ranganath, Fred Morstatter, Xia Hu +2

Social media has emerged to be a popular platform for people to express their viewpoints on political protests like the Arab Spring. Millions of people use social media to communic…

cs.SI2014★ 44 cited

When is it Biased? Assessing the Representativeness of Twitter's Streaming API

Fred Morstatter, Jürgen Pfeffer, Huan Liu

Twitter has captured the interest of the scientific community not only for its massive user base and content, but also for its openness in sharing its data. Twitter shares a free 1…

cs.SI2013

Is the Sample Good Enough? Comparing Data from Twitter's Streaming API with Twitter's Firehose

Fred Morstatter, Jürgen Pfeffer, Huan Liu +1

Twitter is a social media giant famous for the exchange of short, 140-character messages called "tweets". In the scientific community, the microblogging site is known for openness…